Bookbinder&#39;s press



re'b. 24, 192s.

J; MURRAY BOOKBINDERS PRESS Fi oh 15. 41922 3 Feb. 24 192.5-

- I -.1. MURRAY BOOKBI/NDERS PRESS Fiied Ma ch 15. 1922 s vsham-sheet s FIC-5.45.

Inl/'enfer John/Maffay.

Patented Feb. 24, 1925.

UNITED sTATrs JOHN MURRAY, OF LONDON', ENGLAND.

BOOKBINDERS Pia-Ess.

Application' ilediMarch 15, 1,922. Serial No. 543,525.

To ilimitam t may concern.'

Be it known that I, JOHN MURRAY, a subject of the King .of Great Britain and Ireland, and a resident of London, England, have invented certain new and'useful Improved Bookbinders-Presses, of which the following is the specification. Y

The invention relates to hand operated bookbinders presses of the kind in Ywhich a fixed head coacts with a movable platen on a table adapted to receive the materialto be pressed and in which there are means for rapidly bringing the platen up to the material to be presse-d,v which is arranged against the `head andhfor` thereupon advancing the platen slowlyrand with pressure, there being means for rele'asing'and rapidly returning the platen;

The invention' has fork its object to provide improved means for operating the head, in the manner set forth, which means provide a train of positive gearing which is auto? matically brought into action for thep'ressing operation'.

In carrying outfthe invention, there is supported in front of the fixed head, a face plate. The faceplate is so mounted on springs that while it normally lies a short distance in front of the fixed head, pressure put upon it causes it to retire toward the latter.

The platen is carried in guides on the table and is operated by a simple lupstanding handle for the rapid advancing and retiring motion, and by a rack bar fixed to it and operated by a handwheel through gearing on a transverse shaft for the slow and pressure applying motion. This gearing which is preferably of epicyclic form is thrown into and out of operative connection Vwith the rack bar by shifting mechanism operated by a rod or the like connected to the springsupported face plate.

In the drawings, Fig. l is a side elevation of one example of a press made in accordance with my invention;

Fig. 2 is a side elevation;

Fig. 3 is a plan view;

Fig. 4 is a sectional plan view on an enlarged scale of part of the press; and

Fig. 5 is an elevation on an enlarged scale luwing the ratchet, pawl and operating In this example, there is at one end of the table A a fixed head B. In front of this fixed headther'e issupported on the table a1 face plate C which is resiliently maintained at a short distance in front of the head by a spring D arranged in a cavity in the head it and operated bya pinion Lon a sleeve M on a transvese shaft N through the well known-epicyclic gearing from a handlel P on the vshaft N.v As is more clearly seen in Figure f4, ythis gearing consists of a series of pairs of planetary pinions R, S mounted in any` suitable manner' in the -centralweb of a casing Y lfixed to theshalft N and gearing on the'on'ehand with a pinion V1 to which is attached a ratchet .wheel A1, and on the other with a pinion- V2 which is fixed to' the n,

sleeve M having on it thel pinion L which meshes 'with the rack K.

Below the ratchet' wheel A1 are vertical guides Z guiding pawl B which is adapted to engage the ratchet wheel when pushed upwards by a pin P2 fixed to the pawl B1, and sliding in an inclined slot T1 in a hori- Zontally guided link T. This link T is attached to the end of a tappet C1 connected to the face plate C. The pawl B1 is thus operated from the face plate by means of the slot T1 raising or lowering the pin P2. The horizontal movement of the rod C1 then produces the vertical movement of the pawl B1 which 'is necessary to malte it engage with thek ratchet wheel A1. This rod C1 passes through the face plate, is provided with a collary D1 there against and with a buffer spring E, arranged between the face plate and a collar G1 on the end of the rod. A handled lever H1, pivoted on the table and engaging between collars J1 on the rod C, is provided for operating the latter independently of the movement of the face plate.

When the shaft N is rotated by the handle P, the casing Y revolves and carries the planetary wheels R, S around the pinions V1, and V2. If the pawl B1 is in engagement with the ratchet wheel A the pinion V1 cannot revolve and the motion due to the gear ratio will be transn'iitted to the pinion V2 and pinion L, and so to the rack K and sliding platen G.

Then the pawl B1 is out of engagement with the ratchet wheel A1' the wheel Vl is free to rotate and any motion from the rack K simply causes the wheel V1 to turn idly.,

In operation, the material to be pressed is placed on the table B and against the spring controlled tace plate C. Then sumcient material has been so placed, the movable platen G is run rapidly 'for vard by the handle J so that its impact upon the material causes the face plate to retire. Meantime the pawl B1 has been out of engagement with the ratchet wheel A, on the epicyclic train, so that the platen may be moved rapidly forward. But immediately the Jface plate is retired, it causes the tappet rod Cl connected to it to operate the pawl and lock the epicyclic train. The material, partially compressed by the initial blow, is turther compressed by operation ot the now interlocled epicyclic train by the handle I). When compression is complete, the pawl is withdrawn by a movement of the tappet rod, freeing the epicyclic train, and the movable platen may then be freely and rapidly withdrawn tor removal of the material.

`What I claim is :n

il. In a hand-operated bookbinders press, having a fixed head and amovable platen, means permitting rapid advancement of the platen and alternative means Jfor advancing the platen slowly in combination with means ,controlled by the pressure between the platen and the head tor automatically shitting from one advancing means to the other.

2. In a hand-operated booltbinders press, having a lixed head and a movable platen, means permitting rapid advancement ot the platen and alternative means for advancing the platen slowly in combination with means controlled by the pressure between the platen and the head for automatically shitting from o-ne advancing means to the other, said shitting means having a :tace plate springsupported from the head and operatively connected to the advancing means.

In a hand-operated booltbinders press, a fixed head and a movable platen, means permitting rapid advancement of the platen and gearing tor advancing the platen slowly in combination with guides in which said platen slides t'reely and alternative means tor locking said platen to said slow gearing.

1l. In a hand-operated bookbinders press, having a fixed head and a movable platen, means permitting rapid advancement of the platen and alternative means for advancing the platen slowly in combination with means controlled by the pressure between the platen and the head for automatically shitting from one advancing means to the other, said shifting means having a Jface plate spring-supported from the head, an epicyclic train, a pawl controlling said tra-in and a tappet rod connecting said pawl to said face plate, substantially as described.

In testimony whereof I have signed my name to this specification.

JOHN MURRAY. 

